HOW TO HACK NOKIA E71 FIRMWARE THE EASY WAY & INSTALL UNSIGNED APPLICATIONS

Admin warning: Hack at your own risk. If something happens to your phone we are not liable.
I know there are hundred of ways available over the internet with which you can do it but I am showing you the easiest way possible as far as I know and I will surely try to make it as simple as I can.

Here is the list of things you will need : Your E71 (of course), Nokia PC suite, FreeSigner application, HelloOx2 unsigned and some patience, that's it! I am listing down the method so that it becomes more easier for you to follow.

1. Goto OPDA and sign up for an account and login to it.
2. Click on apply cer button on the right hand side of the page
3. Fill in the details as asked in that form and click on submit application
4. It will give a success confirmation once done and you will have to check OPDA again after 5 hours to download your certificate and key.
5. Now Download HelloOx2 application and save (don't install) in your phone.
6. Now Download FreeSigner and install it to your phone.
7. Copy the certificate and key to your phone. (may it be in internal or external memory)
8. Now run FreeSigner and goto options > settings and map your certificate and key file there and leave all the other fields as it it.
9. Now Press back and select Add Task and map your HelloOx2 file which you saved as per the point number 5 and select Self Sign Sis.
10. Press option > Go! . After few seconds go to the place where you saved your HelloOx2 and install and run it. It will do the rest of the work and you're done!

Now you may try installing any application or game which was giving you a certificate error previously and you will be happy to install it.